I have a 1986 b/caparice it runs great I've drove it from Detroit to Missouri and then down to Alabama with no problems. But I want to put some rims on it. I'm thinking some 26 inch rims. I was wondering what would be my best bet engine wise so I can still get that push but still have good milage. I appreciate any help I just need to advice form u guys

Thanks

 

There's no replacement for displacement. Just swap in a 350 Chevy for the 305 Chevy that's in there. A gear swap might be a better way to go first though, say a 373 or 410 gear set. Wanting 26" donk rims, and good gas mileage at the same time is pretty funny though.

Good luck.
Mike